[java] Initial implementation or marshaling for Java types.

binder/Generators/Java/JavaMarshal.cs

@@ -0,0 +1,80 @@
+using CppSharp.AST;
+
+namespace MonoEmbeddinator4000.Generators
+{
+    public class JavaMarshalPrinter : CMarshalPrinter
+    {
+        public JavaMarshalPrinter(MarshalContext marshalContext)
+            : base(marshalContext)
+        {
+        }
+    }
+
+    public class JavaMarshalManagedToNative : JavaMarshalPrinter
+    {
+        public JavaMarshalManagedToNative(MarshalContext marshalContext)
+            : base(marshalContext)
+        {
+        }
+
+        public override bool VisitManagedArrayType(ManagedArrayType array,
+            TypeQualifiers quals)
+        {
+            Context.Return.Write("null");
+            return true;
+        }
+
+        public override bool VisitClassDecl(Class @class)
+        {
+            Context.Return.Write($"{Context.ArgName}.__object");
+            return true;
+        }
+
+        public override bool VisitEnumDecl(Enumeration @enum)
+        {
+            Context.Return.Write(Context.ArgName);
+            return true;
+        }
+
+        public override bool VisitPrimitiveType(PrimitiveType type,
+            TypeQualifiers quals)
+        {
+            Context.Return.Write(Context.ArgName);
+            return true;
+        }
+    }
+
+    public class JavaMarshalNativeToManaged : JavaMarshalPrinter
+    {
+        public JavaMarshalNativeToManaged (MarshalContext marshalContext)
+            : base(marshalContext)
+        {
+        }
+
+        public override bool VisitManagedArrayType(ManagedArrayType array,
+            TypeQualifiers quals)
+        {
+            Context.Return.Write("null");
+            return true;
+        }
+
+        public override bool VisitClassDecl(Class @class)
+        {
+            Context.Return.Write("null");
+            return true;
+        }
+
+        public override bool VisitEnumDecl(Enumeration @enum)
+        {
+            Context.Return.Write(Context.ReturnVarName);
+            return true;
+        }
+
+        public override bool VisitPrimitiveType(PrimitiveType type,
+            TypeQualifiers quals)
+        {
+            Context.Return.Write(Context.ReturnVarName);
+            return true;
+        }
+    }
+}

build/projects/MonoEmbeddinator4000.csproj

@@ -72,6 +72,9 @@
     <Compile Include="../../binder/Generators/Java/JavaGenerator.cs">
       <Link>binder/Generators/Java/JavaGenerator.cs</Link>
     </Compile>
+    <Compile Include="../../binder/Generators/Java/JavaMarshal.cs">
+      <Link>binder/Generators/Java/JavaMarshal.cs</Link>
+    </Compile>
     <Compile Include="../../binder/Generators/Java/JavaNative.cs">
       <Link>binder/Generators/Java/JavaNative.cs</Link>
     </Compile>